{
  "annotation_id": "7fa839e0-16d4-49c7-9a9f-fc377c458a9e",
  "date_created": "2026-03-02T18:02:41.354000Z",
  "date_modified": "2026-03-02T18:02:41.354000Z",
  "file_hash": "bc511dc2ae70a0f9ee94edf0219ebd20442436c2e87592434697df22b8bda20f",
  "private": false,
  "record": {
    "abstract": "We study the complex geometric phase acquired by the resonant states of an\nopen quantum system which evolves irreversibly in a slowly time dependent\nenvironment. In analogy with the case of bound states, the Berry phase factors\nof resonant states are holonomy group elements of a complex line bundle with\nstructure group C*. In sharp contrast with bound states, accidental\ndegeneracies of resonances produce a continuous closed line of singularities\nformally equivalent to a continuous distribution of \"magnetic\" charge on a\n\"diabolical\" circle, in consequence, we find different classes of topologically\ninequivalent non-trivial closed paths in parameter space.",
    "arxiv_id": "quant-ph/9710018",
    "authors": [
      "A. Mondragon",
      "E. Hernandez"
    ],
    "categories": [
      "quant-ph",
      "hep-th",
      "nucl-th"
    ],
    "doi": "10.1007/BFb0106786",
    "title": "Accidental Degeneracy and Berry Phase of Resonant States",
    "url": "https://arxiv.org/abs/quant-ph/9710018"
  },
  "schema_id": "dorsal/arxiv",
  "source": {
    "execution_id": "46456b32-698b-453a-a217-db9258f637cd",
    "id": "arXiv Dataset IDs",
    "type": "Model",
    "variant": "snapshot-2026-03-01",
    "version": "0.1.0"
  },
  "user_id": 1000002
}